I am trying to set up a mail receiver so when an email comes into a particular address it creates a ticket in JIRA. I have done this in the past in other systems without issue but I am getting an error that states Unfortunately JIRA couldn't connect to the mail server. Here is what the mail server said: "220 ***************.com Microsoft ESMTP MAIL Service ready at Mon, 5 Feb 2018 08:12:02 -0600" for help resolving the issue. This appears to be connecting in someway and the ports are correct but it is not actually letting me connect it.